Calahan had recently started a new job as a telemarketer, said his uncle, Tony Holmes, who rushed to the scene after hearing the news.

"He was trying to get his life together," said Holmes, 43. The two had been spending a lot of time together, with Calahan helping his uncle with a move into a new home.

While he sometimes ran with a rough crowd, Calahan was working to provide for his children, Holmes said.

Looking back toward the police tape, where a crowd watched police examine the now-uncovered body, Holmes gestured toward a toddler in a red hooded sweatshirt. It was Calahan's son, Holmes said.

In a separate shooting, a 35-year-old man was shot in the upper back about midnight in the 4200 block of West 16th Street, police said. A relative drove the man to Mount Sinai Hospital, where his condition was stabilized.

The shooting happened the Lawndale neighborhood on the West Side.

About 9 p.m., a gunman fired shots at a group of people standing in the 1100 block of West 111th Place in the Morgan Park neighborhood on the Far South Side, police said. A 20-year-old man was struck in the lower back and taken to Stroger hospital, where his condition was stabilized.